Microsoft Office 2016/2019 on Mac Excel Document input validation

Summaryinfo

A vulnerability classified as critical was found in Microsoft Office 2016/2019 on Mac. This impacts an unknown function of the component Excel. Such manipulation as part of Document leads to input validation. This vulnerability is listed as CVE-2019-1457. The attack may be performed from remote. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Microsoft Office 2016/2019 on Mac (Office Suite Software) and classified as critical. Affected by this issue is an unknown function of the component Excel. The manipulation as part of a Document leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A security feature bypass vulnerability exists in Microsoft Office software by not enforcing macro settings on an Excel document, aka 'Microsoft Office Excel Security Feature Bypass'.

The weakness was presented 11/12/2019 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release was coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2019-1457 since 11/26/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:

A security feature bypass vulnerability exists in Microsoft Office software by not enforcing macro settings on an Excel document. The security feature bypass by itself does not allow arbitrary code execution. To successfully exploit the vulnerability, an attacker would have to embed a control in an Excel worksheet that specifies a macro should be run. To exploit the vulnerability, an attacker would have to convince a user to open a specially crafted file with an affected version of Microsoft Office software. The security update addresses the vulnerability by enforcing macro settings on Excel documents.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Office Suite Software

Vendor

• Microsoft

Name

• Office

Version

• 2016
• 2019

License

• commercial

Website

• Vendor: https://www.microsoft.com/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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